| deadly(adjective, bad, evil, cruel, unkind) |
| calamitous(adjective, bad, severe, unhappy, awful) |
| disastrous(adjective, bad, unhappy, inappropriate, adverse) |
| fatal(adjective, bad, evil, harmful, dangerous) |
| malignant(adjective, bad, negative, vile, hateful) |
| negative(adjective, harmful, injurious, unfavorable, disapproving) |
| not good |
| wounding(verb, adjective, awful, terrible, cruel) |
| catastrophic(adjective, harmful, injurious, deadly, destructive) |
| devastating(adjective, bad, evil, harmful, injurious) |
| disturbing(adjective, awful, terrible, dreadful, unfavorable) |
| lethal(adjective, bad, harmful, dangerous, injurious) |
| poisonous(adjective, bad, evil, offensive, cruel) |
| toxic(adjective, bad, harmful, dangerous, injurious) |
| cataclysmic(adjective, harmful, injurious, deadly, destructive) |
| distressing(adjective, awful, terrible, cruel, unkind) |
| grievous(adjective, severe, painful) |
| inimical(adjective, negative, harmful, injurious, unfavorable) |
| malign |
| marring(verb, blemishing) |